president obama also said that we will never see the likes of nelson mandela again. is he right? >> i think so in a physical sense, but perhaps in this sense of not only spirituality but in the sense of presence and the times in which he led. like gandhi, like king, like lincoln, nelson mandela lived through trials and tribulations and suffered mightily for what his views were yet emerged to be recognized not only as a great leader of south africa, but we see from the tribute, 90 world leaders, four u.s. presidents. the tribute to him is memorable. i cannot remember a funeral of this sort, a memory of this sort for any person in my life. >> and we are just dpbeginning, there are many more days of tributes to him. the president's speech today struck a lot of personal notes as well. he was inspired by nelson mandela. let me play another clip. >> over 30 years ago, while still a student, i learned of nelson mandela and the struggles taking place in this beautiful land, and it stirred something in me. it woke me up to my responsibilities. to others and to myself. and it set me on an